clients(devtools): expose registerLocaleData to worker

clients/devtools-entry.js

@@ -8,6 +8,7 @@
 const lighthouse = require('../lighthouse-core/index.js');
 const RawProtocol = require('../lighthouse-core/gather/connections/raw.js');
 const log = require('lighthouse-logger');
+const {registerLocaleData, lookupLocale} = require('../lighthouse-core/lib/i18n/i18n.js');
 
 /** @typedef {import('../lighthouse-core/gather/connections/connection.js')} Connection */
 
@@ -53,6 +54,8 @@ if (typeof module !== 'undefined' && module.exports) {
   module.exports = {
     runLighthouseInWorker,
     listenForStatus,
+    registerLocaleData,
+    lookupLocale
   };
 }
 
@@ -63,4 +66,8 @@ if (typeof self !== 'undefined') {
   self.runLighthouseInWorker = runLighthouseInWorker;
   // @ts-ignore
   self.listenForStatus = listenForStatus;
+  // @ts-ignore
+  self.registerLocaleData = registerLocaleData;
+  // @ts-ignore
+  self.lookupLocale = lookupLocale;
 }

lighthouse-core/index.js

@@ -66,6 +66,5 @@ lighthouse.traceCategories = require('./gather/driver.js').traceCategories;
 lighthouse.Audit = require('./audits/audit.js');
 lighthouse.Gatherer = require('./gather/gatherers/gatherer.js');
 lighthouse.NetworkRecords = require('./computed/network-records.js');
-lighthouse.registerLocaleData = require('./lib/i18n/i18n.js').registerLocaleData;
 
 module.exports = lighthouse;

lighthouse-core/lib/i18n/locales.js

@@ -107,9 +107,9 @@ const locales = {
   'tr': require('./locales/tr.json'),
   'uk': require('./locales/uk.json'),
   'vi': require('./locales/vi.json'),
-  'zh': require('./locales/zh.json'), // zh-CN identical, so it falls back into zh
-  'zh-HK': require('./locales/zh-HK.json'),
-  'zh-TW': require('./locales/zh-TW.json'),
+  'zh': require('./locales/zh.json'), // aka ZH-Hans, sometimes seen as zh-CN, zh-Hans-CN, Simplified Chinese
+  'zh-HK': require('./locales/zh-HK.json'), // aka zh-Hant-HK. Note: yue-Hant-HK is not supported.
+  'zh-TW': require('./locales/zh-TW.json'), // aka zh-Hant, zh-Hant-TW, Traditional Chinese
 };
 
 module.exports = locales;

lighthouse-core/test/lib/i18n/i18n-test.js

@@ -114,6 +114,10 @@ describe('i18n', () => {
   });
 
   describe('#registerLocaleData', () => {
+    // Store original locale data so we can restore at the end
+    const moduleLocales = require('../../../lib/i18n/locales.js');
+    const clonedLocales = JSON.parse(JSON.stringify(moduleLocales));
+
     it('installs new locale strings', () => {
       const localeData = {
         'lighthouse-core/test/lib/i18n/i18n-test.js | testString': {
@@ -142,18 +146,23 @@ describe('i18n', () => {
       // Now we declare and register the new string...
       const localeData = {
         'lighthouse-core/audits/is-on-https.js | title': {
-          'message': 'es-419 uses https!',
+          'message': 'new string for es-419 uses https!',
         },
       };
       i18n.registerLocaleData('es-419', localeData);
 
       // And confirm that's what is returned
       const newTitle = i18n.getFormatted(str_(UIStrings.title), 'es-419');
-      expect(newTitle).toEqual('es-419 uses https!');
+      expect(newTitle).toEqual('new string for es-419 uses https!');
 
       // Meanwhile another string that wasn't set in registerLocaleData just falls back to english
       const newFailureTitle = i18n.getFormatted(str_(UIStrings.failureTitle), 'es-419');
       expect(newFailureTitle).toEqual('Does not use HTTPS');
+
+      // Restore overwritten strings to avoid messing with other tests
+      moduleLocales['es-419'] = clonedLocales['es-419'];
+      const title = i18n.getFormatted(str_(UIStrings.title), 'es-419');
+      expect(title).toEqual('Usa HTTPS');
     });
   });